Wood Protection And Preservation

The new edition of this comprehensive study of national and international research and application into wood preservation is both well detailed and broad in coverage. The text covers the history of preservation: the anatomy of timbers and their breakdown, preservation principles, materials and methods.

Wood is an advantageous building material in many respects, but it is biodegradable and therefore requires protection when used in highly hazardous applications. This Special Issue comprises 19 papers by authors from 14 countries in Asia, North America and Europe. They represent a wide range of aspects related to wood protection and wood preservation, and give timely examples of research activities that can be observed around the globe. Several authors reported on the processes of thermal modification and different chemical wood modification techniques, which are among the latest alternative wood protection methods without the use of biocides. New preservatives and assessment methods of preservative-treated wood products are presented, as well as studies on the natural durability of wood, fire-retardant treated wood, the effect of concrete on wood durability and different novel surface modification techniques using plasma. In addition to biological durability, the mechanical properties, moisture performance, bonding properties, weathering stability and the corrosiveness of differently treated wood are investigated and reported within this Special Issue. Examples of research on fungal biology, service life planning with wood and test methodology are also included and complete the Special Issue.

The effective and lasting treatment of wood against insect and fungal attack grows in importance as forestry reserves decline and as cost increases feed through to the building trade and other timber users. At the same time, environmental pressures bear ever more heavily on the types of chemicals and processes employed in the preservation industry. This book records the proceedings of an international meeting arranged to address such issues. The 15 principal chapters are based upon papers by invited experts to a combined audience of preservation practitioners and non-specialists. The chapter sequence follows the logical pattern of the conference, beginning with a review of the biological threats to be contended. There follow historical and state-of-the-art accounts of aqueous, organic solvent and non-liquid treatment processes. Preservatives increasingly must meet international product and environmental standards, which along with the related test, analytical and quality control procedures, are described and referenced. Contributors from the wood preservation industry address a range of needs associated with cost, safety and performance efficacy, not neglecting a search for a better understanding of the finer chemical mechanisms involved. Remaining problems are outlined in strategies for further research and development. Address a range of needs associated with cost, safety and performance efficacy Problems are outlined in strategies for further research and development

In recent years considerable progress has been made in elucidating wood decay mechanisms. This basic knowledge not only has the potential to develop alternative environmentally-benign wood preservatives, but may also impact other areas such as bioremediation and pulp and paper. This book will summarize the latest knowledge of the developments, potential impacts, and applications from some of the world's leading experts.

The Nordic Council of Ministers, the BAT Group under the Working Group for Sustainable Consumption and Production, has requested the consultant to prepare a report on Best Available Techniques (BAT) in wood preservation with chemicals in the Nordic countries. The Nordic wood preserving industry produces around 2.1 million m³ of impregnated wood per year, which is about one third of the total supply of pressure-treated wood in Europe. This report describes the present status of the used technologies, their emissions and impacts on the environment and technologies that can be considered BAT. The report will also be used as an input from the Nordic countries to the EU process under the Industrial Emissions Directive (IED) for preparation of the BAT Reference Document for preservation of wood and wood products with chemicals (WPC BREF) which is foreseen to start in 2014.